大豆蛋白纤维变性浴染色工艺研究

The Performance Contrast of Soybean Fiber with the Different Dyeing Process

在碱性条件下,部分活性染料在上染纤维的同时,将被水解而"失活"。但是由于已经"失活"的活性染料的结构和酸性染料相似,因此可以利用改变染色浴酸碱性的方法使活性染料实现第2次上染,即所谓的"变性浴"。测试结果表明,变性浴染色工艺不但提高了染色质量,简化了染色工艺,而且提高了染料利用率和废水治理的效果,更适合于大豆蛋白纤维染色。

When dyeing fiber in alkali bath, part of reactive dyes will be hydrolyzed and then become inactivated. Since the inactivated dyes have similar structure to that of acid dyes,they can be utilized to redye the fiber by changing the power of hydrogen of the dyeing bath, so called the denaturated bath. The dyeing process can enhance the dye up-take rate and reduce the discharge load of effluent. Experiments show that good result has been achieved when the soybean fiber is dyed by the denaturated bath of reactive dyes.